Vibration damping using flexible graphite
Abstract
Vibration damping is valuable for structures, as it mitigates hazards (whether due to accidental loading, wind, ocean waves or earthquakes), increases the comfort of people who use the structures, and enhances the reliability and performance of structures. The basic concept about damping involves the absorption of external energy through internal motion or friction [1,2]. A layered structure is attractive for damping due to the large internal surface area involved [3,4]. The relative motion between layers produces extra shear, which means more energy dissipation [5]. For instance, a viscoelastic material or a fluid layer is sandwiched within a beam for both passive and active damping [6-8]. However, fluid and viscoelastic materials suffer from their poor stiffness, limited resistance to heat and chemicals, in addition to high thermal expansion and poor thermal conductivity, which aggravate thermal stresses.
- Publication:
-
Carbon
- Pub Date:
- 2000
- DOI:
- 10.1016/S0008-6223(00)00111-1
- Bibcode:
- 2000Carbo..38.1510L
- Keywords:
-
- A. Synthetic graphite;
- Natural graphite;
- Intercalation compounds;
- D. Mechanical properties;
- Acoustical properties